Valve.



PATENTED AUG. 30, 1904.

F. STICKER.

VALVE.

unieuro!! funn :uur: a, 1903.

HO MODEL.

[fvg/EN TOR fiume v UNITED STATES FRANCIS STICKER, OF NEIV YORK,

Patented August 30, 1904.

PATENT OFFICE.

N. Y., ASSIGNOR OF ONE-HALF TO VALVE.

SPECIFICATION .forming part of Letters Patent No. 769,031, dated August30, 1904.

Application filed Juno 9, 1903. Serial No. 160,722. (No model.)

' To rtf/l 'u f'lmm. it Hefty concern:

Be it known that LFRANoIs STICKER, of New York, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Valves; and I do hereby declare the following to be afull', clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe Same.

This invention relates to that class of valves or cocks generallyemployed on steam and hydraulic engines equipped with means for securelyholding the conical valve-body to its seat, yet readily moving the valvelongitudinally to a slight extent when necessary to overcome thefrictional engagement by which. it may be held and permit of its beingturned axially to control the passage of Huid.

The object of the invention is to provide improved means for sobalancing the plug as to prevent the binding thereof and yet permit ofready longitudinal adjustment in the event of the plug sticking in itsseat, .such means heilig simple and inexpensive and effectively guardingagainst leakage.

The invention willv be hereinafter fully set forth, and particularlypointed out in the claims. 7

In the accompanying drawings, Figure 1 is a vertical sectional viewshowingavalve and casing and coacting parts constructed in ac cordancewith my invention. Figs. 2 and 3 are plan views of the sleeve' and nut,respectively. Fig. 4 shows a slight modication.

Referring to the drawings, 1 designates the valve-casing, provided witha conical valveseat extending transversely therethrough. The upper Wallof the casingis formed with a chamber 2, surrounded by a concentricflange 3, the inner face of which is threaded.

4 designates a sleeve designed to be accommodated by the lange andthreaded on its inner and outer faces. At its inner end the sleeve isprovided with a seat or stop, shown in the form of an internal annularflange 5; but in lieu of the flange a series of studs or pins may beemployed. The peripheral suriface of the sleeve beyond its outer threadis square or octagonal to permit of the applica being thus balanced.

tion of a wrench. An externallythreaded nut 6 is designed to beaccommodated by the sleeve and is formed with a central opening 7, thecentral thickened lportion being squared,

'similarly to the sleeve.

8 designates the valve-plug, having n. port 9 of any preferredformation. The circular top of thevalve-plug extends laterally beyondthe ping-body to form an annular Iiange or shoulder 10, which isdesigned to rest on the -ange-seat of. sleeve 4.

The stem 12 extends through the opening 7 of the nutand carries a handleon its outer end. Interposed between the top of the plug and nut 6 area. metallic washer 13 and elastic packing 14, the oIice of the former.being to present a smooth surface tothe packing, thus obviating theeffect upon the latter by frictional contact with the nut and the top ofthe valve.

In assembling the parts sleeve 4 is positioned Within chamber 2 andvalve 8 then introduced within the casing and seated, after which thesleeve is rotated outwardly until its flange 5 contacts with shoulder 10to an extent to guard against any greater contact between the valve-plugand its seat. The sleeve is then heid by a wrench and nutl 6 is rotatedinwardly, com pressing packing 14 and binding shoulder 10 against flange5, the plug When it is desired to adjust the valve axially to controlthe fluidpassage` the handle is operated in the usual way. If, however,the valve has become 'stuck in its seat, it is only necessary toslightly loosen sleeve 4, (nut 6 moving with it,) and the valve is freeto be turned axially, since any outward movement of the sleeve carriesthe plug with it. This .loosening of the sleeve need be but very slightto sufficiently release the plug. If the latter be moved too much from'its seat, gritty substances will get in the finished bearings anddestroy'them.

In the modification shown in Fig. 4 nut 6 as'an element acting withinthe sleeve is dispensed with 'and in,v lieu thereof a threaded post orspindle 15, 'rejecting from the inner end of the plug an having a washer16 and nut 17 ,is employed. The Washer moves freely over the flange 18,surrounding the opening in the casing, when the valve is being turnedaxially to control the fluid-supply, and hence no longitudinalmoven'ient of the valve ircsuits therefrom. IVhen, however, itis desiredto slightly loosen the valve-plug, nut f7 is rotated outwardly andsleeve -f rotated as before described. Thus nut 1T simply performs theoffice of holding the pl ug and not of moving it, as it is known thatthe wedge action with which the conical plug is held when it becomesstuck cannot be overcome by force applied to its smaller end. Hence theoffice of the sleeveseat in both the preferred and modified forms ofembodiment of the invention is to balance the plug between two stops toprevent binding and allow of ready adjustment in the event of the plugsticking in its seat.

The advantages of my invention are apparent to those. skilled in thcart. Its embodiment is simple and effects economy in the manufacture ofthis class of valves. It is entirely independent in operation from themeans for turning nthe valve axially, and consequently may be operatedto move the latter longitudinally sufficiently to release it -withoutchanging its axial adjustment. The sleeve may readily be adjusted toaccommodate the valve when the latter is seated, and hence when the.valve becomes worn and projects farther down into the casing it is onlynecessary to move the sleeve to conform to the extent to which the valveprojects above the opening in the casing.

It will be understood that the purpose of the packing 14 is to act as acushion'and not for the prevention of leakage, as I rely upon the fit ofthe plug within its seat to obviate leakage. For this reason when themodified construction is employed the packing is not essential.

While the invention is primarily applicable to blow-ofi' cocks, itsadaptability to various uses is apparent.

I claim as my invention# 1. The casing having a valve-scat extending'therethrough, a val ve-plug fitted in said scat and having acircumferential projection, and

means for holding such plug in balance within its scat, comprising' twoelements, one forniinga support for said proj` Lior nd the other forholding such projection` to -uch support and independent means forturning said pl ug axially, substantially as set-forth.

2. The casing havinga conical valve-seat extending therethrough, aconical rotary valvt plug fitted in said seat, means acting on thewidened end, of said plug for moving the latter longitudinally from itsseat, such means forming a support for said plug, coacting means forholdingsaid plug to said support and independent means for turning saidplug axially, as set forth.

3. The casing having a conical valve-seater:- tending therethrough, aconical rotary valveplug fitr/ed in said seat, a sleeve mounted in saidcasing at the widened end of said seat forming a support foi-said plugand adjustable to move said plug longitudinally from its con ical seat,means for binding said plug against said sleeve and independent meansfor turning said plug axially, as set forth.

4.- rIlie casing having a tapered opening forming a valve-seat, achamber' into which such seat opens, a sleeve fitted in such chamber andadjustable therein, such sleeve having an internal annular flange, avalve-plug axially rotatable in such seat having a circumferentialshoulderdesigned to fit against said flange, and means for binding saidshoulder against said fiange, `as set` forth.

5. The casing having a circular chamber, an interiorly-threaded iangesurrounding such chamber, a sleeve Working in said flange and having aninternal annular flange, a rotary valve-plug having a shoulder designedto rest on said fiange of the sleeve, and a nut threaded in said sleeveand designed to bind the plug between itself andthe sleeve-flange, asset forth.

6. The combination with a valve-casing having a tapered valve-openingand a chamber, an interiorly threaded flange surrounding such chamber,and a valve-plug fitted in the opening, such plug having a shoulder onits outer end and also having a stem, of a sleeve threaded in saidflange and having a seat designed to contact with the shoulder of suchvalve-plug, a nut threaded in said sleeve having a central openingdesigned to accommodate said stem, and a metallic washer and packingbetween said nut and the outer end of said plug, as set forth.

ln testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

FRANCIS STICKER.

ivitnesses:

GRAFTON C. MCGILL, FREDERICK S. S'rrr'r.

IOO

